Endometrial Hyperplasia As a Cause of Secondary Postpartum Hemorrhage in a Post Caesarean Section Patient

Endometrial Hyperplasia As a Cause of Secondary Postpartum Hemorrhage in a Post Caesarean Section Patient

Case Report J Med Cases. 2018;9(6):183-186 Endometrial Hyperplasia as a Cause of Secondary Postpartum Hemorrhage in a Post Caesarean Section Patient Charissa Goha, d, Manisha Mathura, Soo Kim Lim-Tanb, Yong Kuei Limc Abstract There are multiple causes of secondary postpartum bleed- ing. The common causes include uterine atony, endometritis There are multiple causes of prolonged and persistent postpartum and retained products of conception [2-4]. Uncommon eti- bleeding. The common etiologies include uterine atony, endometri- ologies described in literature include uterine artery pseu- tis and retained products of conception. Uncommon causes described doaneurysm, placental site nodule, idiopathic subinvolution in literature include uterine artery pseudoaneurysm, placental site of the uteroplacental vessels, congenital coagulopathy and nodule and uterine scar dehiscence. Endometrial hyperplasia causing uterine scar dehiscence [2-12]. Malignant changes including persistent per vaginal bleeding postpartum has yet to be reported in carcinoma of the cervix, uterus or choriocarcinoma can also literature. The rarity of this condition may be attributed to the under- be included amongst rare causes of secondary PPH [13, 14]. lying pathogenesis. Endometrial hyperplasia is caused by unopposed Leunen et al [14] report a case of a 28-year-old lady presenting estrogen and it is well established that pregnancy decreases the risk with secondary PPH who was later diagnosed with endome- of endometrial hyperplasia. We present a case report of a 42-year-old trial stromal sarcoma. There is also a case report on postpar- lady found to have complex endometrial hyperplasia during evalua- tum endometrial hyperplasia in diabetic women with history of tion for persistent per vaginal bleeding 3 months post Caesarean sec- stilbesterol exposure during pregnancy [15]. However, as there tion. was no control group in the study, a direct causal relationship between stilbesterol use and postpartum endometrial hyperpla- Keywords: Postpartum endometrial hyperplasia; Secondary postpar- sia cannot be established. However, endometrial hyperplasia in tum hemorrhage women with no prior stilbesterol exposure causing persistent per vaginal bleeding postpartum has not yet to be reported in literature, to the best of our knowledge. Introduction Case Report Secondary postpartum hemorrhage (PPH) is defined as any Case presentation significant bleeding from the birth canal between 24 h and 12 weeks postnatal [1]. Boyd et al [1] reported an incidence of 0.2% of secondary PPH amongst women delivered in two hos- A 42-year-old (gravida 3 para 2) woman underwent an un- pitals in the United States and re-admitted with a diagnosis complicated emergency lower segment Caesarean section at of secondary PPH. However, the true frequency of secondary 37 weeks gestation for mild pre-eclampsia and history of two prior Caesarean sections. She had no significant past medical PPH may be difficult to estimate as many of the postpartum history of note. Her pregnancy thus far had been uncompli- patients are discharged to primary care. cated with no history of an early or a late onset antepartum bleed. Preoperatively, a prophylactic dose of the first-gener- Manuscript submitted April 16, 2018, accepted May 9, 2018 ation cephalosporin was administered by intravenous route as routine. In the early postoperative period, she experienced aDepartment of Obstetrics and Gynecology, KK Women’s and Children’s Hos- primary PPH estimated at just over 500 mL that resolved with pital, Singapore oxytocin administration and a uterine massage. bDepartment of Pathology, KK Women’s and Children’s Hospital, Singapore Her preoperative hemoglobin was 12.7 g/dL. In the post- c Department of Gynecologic Oncology, KK Women’s and Children’s Hospi- operative period her hemoglobin level was 11.0 g/dL. The co- tal, Singapore dCorresponding Author: Charissa Goh, KK Women’s and Children’s Hospital, agulation profiles preoperatively and postoperatively were also 100 Bukit Timah Road, 229899, Singapore. within normal limits. The lady was discharged home well on Email: [email protected] the day 3 postpartum. She was first reviewed in clinic at 7 weeks postpartum, doi: https://doi.org/10.14740/jmc3064w with complaint of persistent per vaginal spotting. She was Articles © The authors | Journal compilation © J Med Cases and Elmer Press Inc™ | www.journalmc.org This article is distributed under the terms of the Creative Commons Attribution Non-Commercial 4.0 International License, which permits 183 unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited Endometrial Hyperplasia Diagnosed Postpartum J Med Cases. 2018;9(6):183-186 Figure 1. Ultrasound pelvis at 9 weeks postpartum showing an endo- Figure 3. Ultrasound pelvis at 12 weeks postpartum showing a thick- metrium thickness of 15mm. ened endometrium of 16mm. treated empirically with oral antibiotics for presumptive en- no evidence of an infective cause. dometritis. The lady was reviewed again in clinic 3 weeks later. She The lady attended follow-up at 9 weeks postpartum. She was still having persistent spotting on and off for now 3 months had stopped breast-feeding but continued to complain of per- postpartum. Her urine pregnancy test was negative. An ultra- sistent spotting despite the course of antibiotics. Her clinical sound pelvis was repeated (Fig. 3, 4). It showed a thickened examination was unremarkable. An ultrasound pelvis was ar- endometrium of 16mm with tiny cystic spaces and vascularity. ranged to evaluate the persistent bleeding. The previously noted heterogeneous area at the Caesarean scar was noted to be slightly smaller now measuring 2.0 × 1.2 × 0.9cm. Investigations In view of the ultrasound findings and the history of pro- longed persistent spotting, she was listed for an elective hys- An ultrasound pelvis done at 9 weeks postpartum to determine teroscopy, dilation and curettage, which revealed a thickened the cause of persistent spotting (Fig. 1, 2), showed an endome- polypoidal mass at the anterior uterine wall (Fig. 5). The histo- trial thickness of 15 mm. There was also a heterogeneous focal pathology of the curettings showed focal complex hyperplasia area measuring 2.0 × 1.9 × 1.3 cm at the Caesarean section without atypia, with no trophoblastic cells or chorionic villi scar, which was thought to represent a hematoma, although identified (Fig. 6). small amounts of retained products of conception could not be The clinical history was revisited in detail revealing a his- excluded. As the patient was clinically stable with no pyrexia tory of dysfunctional uterine bleeding for many months prior and had minimal spotting, she was given another course of an- to this pregnancy. Her other risk factors for endometrial hy- tibiotics and treated conservatively for possible retained prod- perplasia include a body mass index (BMI) of 30 and a family uct of conception. Her Pap smear was negative for malignancy. history of endometrial cancer in her mother. However, she did A high vaginal swab (HVS) showed normal vaginal flora with not report any fertility issues and the pregnancy was a sponta- Figure 2. Ultrasound pelvis at 9 weeks postpartum showing the Cae- Figure 4. Ultrasound pelvis at 12 weeks postpartum showing a thick- sarean scar haematoma. ened endometrium with increased vascularity. 184 Articles © The authors | Journal compilation © J Med Cases and Elmer Press Inc™ | www.journalmc.org Goh et al J Med Cases. 2018;9(6):183-186 Figure 5. Hysteroscopy showing a thickened polypoidal mass at the posterior wall. Figure 6. Histology slide showing complex hyperplasia without atypia. neous pregnancy. is not the diagnosis in our patient, as her histological specimen was taken 3 months postpartum after delivery of a full term baby. We hypothesize that in this lady’s case, the endometrial Treatment hyperplasia predated her pregnancy given her age and the his- tory of abnormal uterine bleeding, and persisted postpartum as confirmed by the histopathology of endometrial curettings. She was started on oral progestogens for treatment of endome- In clinical practice, the current treatment options for sec- trial hyperplasia after discussion with the gynecology-oncolo- ondary PPH are usually not based on any evidence [2, 17]. gy multidisciplinary team. The management of PPH tends to be empirical, with the use of uterotonics, antibiotics or tranexamic acid, or a combination Outcome thereof. Nonetheless, most secondary PPH will be amenable to conservative management, which should be the primary option in hemodynamically stable patients. Any surgical man- A repeat endometrial sampling done 4 months post therapy agement, which usually entails dilation and curettage, entails showed resolution of the endometrial hyperplasia. A Mirena higher risk than medical management in the treatment of sec- intrauterine device was inserted as patient was also keen for ondary PPH. In the study by Feigenberg et al [18], hysterec- contraception. She is presently on 6 monthly follow-ups at the tomy, blood transfusion, perforation of the uterus and systemic specialist outpatient clinic. infection were more than twice as likely in women who had surgical rather than medical management of their secondary Discussion PPH. The patient was initially managed conservatively as she was stable and her symptoms were mild. However, in view To the best of our knowledge, this is the first case report of of persistence of symptoms and ultrasonographic evidence of postpartum endometrial hyperplasia in a non-stilbesterol ex- an abnormal looking, thickened endometrium, surgical option posed woman. The rarity of the diagnosis can be attributed to was also discussed with the patient and resorted with consen- the underlying pathogenesis of endometrial hyperplasia. While sus. it is well established that endometrial hyperplasia is caused by Another point of consideration in managing such cases unopposed estrogen exposure, it is also known that pregnancy is the patient’s expectations and quality of life issues. Up to decreases this risk due to abundance of progesterone produced 9.5% of women in an Aberdeen study [19] who had avoided by the placenta.

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